Headphone



FIG. 1 is a front perspective view of a headphone showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right side view thereof, the interior surface of the right earphone cap of the headphone is not shown in the drawing or described in the specification;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is an enlarged view of the encircled portion in FIG. 2.

The broken lines in the figures show portions of the headphone which form no part of the claimed design.

The dot-dash broken lines encircling portions of the claimed design that are illustrated in enlargements form no part of the claimed design. 

CLAIM We claim the ornamental design for a headphone, as shown and described. 